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34385238 = 23210211871
BaseRepresentation
bin1000001100101…
…0110101010110
32101200221200100
42003022311112
532300311423
63224554530
7565161336
oct203126526
971627610
1034385238
1118456158
12b622a46
13717bcc4
1447d10c6
153043343
hex20cad56

34385238 has 24 divisors (see below), whose sum is σ = 74614176. Its totient is φ = 11444400.

The previous prime is 34385227. The next prime is 34385257. The reversal of 34385238 is 83258343.

34385238 is a `hidden beast` number, since 343 + 85 + 238 = 666.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17443 + ... + 19313.

It is an arithmetic number, because the mean of its divisors is an integer number (3108924).

Almost surely, 234385238 is an apocalyptic number.

34385238 is an abundant number, since it is smaller than the sum of its proper divisors (40228938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34385238 is a wasteful number, since it uses less digits than its factorization.

34385238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900 (or 2897 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 34385238 is about 5863.8927343532. The cubic root of 34385238 is about 325.1801384002.

It can be divided in two parts, 3 and 4385238, that added together give a triangular number (4385241 = T2961).

The spelling of 34385238 in words is "thirty-four million, three hundred eighty-five thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 1021 1871 2042 3063 3742 5613 6126 9189 11226 16839 18378 33678 1910291 3820582 5730873 11461746 17192619 34385238